The elements, As, Xe, Fe, Li, B, Cl, Ba, P, I, Si has to be identified as metals, nonmetals, or metalloids. Concept Introduction: According to physical and chemical properties, the elements can be further divided into metals, non-metals and metalloids. In a group, the metallic character of an element increases from top to bottom whereas in a period, it decreases from left to right. Metals are elements that usually contain 1-3 outer shell electrons. Metals look shining and lustrous and are malleable and ductile. They are also good conductors of heat and electricity. They have low ionization energy and tend to lose electrons forming cations. They are most likely to form ionic compounds. Nonmetals are elements that usually contain 4-8 outer shell electrons. They cannot conduct heat and electricity and are brittle. Also they have high electron affinities and tend to gain electrons forming anions. They are most likely to form molecular compounds. Metalloids are elements having intermediate properties of metals and nonmetals. Comparing to metals, metalloids are poor conductors but under certain conditions they can act as electrical conductors. They look shining and lustrous like metals yet they are brittle like nonmetals. The classification elements in the periodic table as metals, nonmetals, or metalloids can be given as
The elements, As, Xe, Fe, Li, B, Cl, Ba, P, I, Si has to be identified as metals, nonmetals, or metalloids. Concept Introduction: According to physical and chemical properties, the elements can be further divided into metals, non-metals and metalloids. In a group, the metallic character of an element increases from top to bottom whereas in a period, it decreases from left to right. Metals are elements that usually contain 1-3 outer shell electrons. Metals look shining and lustrous and are malleable and ductile. They are also good conductors of heat and electricity. They have low ionization energy and tend to lose electrons forming cations. They are most likely to form ionic compounds. Nonmetals are elements that usually contain 4-8 outer shell electrons. They cannot conduct heat and electricity and are brittle. Also they have high electron affinities and tend to gain electrons forming anions. They are most likely to form molecular compounds. Metalloids are elements having intermediate properties of metals and nonmetals. Comparing to metals, metalloids are poor conductors but under certain conditions they can act as electrical conductors. They look shining and lustrous like metals yet they are brittle like nonmetals. The classification elements in the periodic table as metals, nonmetals, or metalloids can be given as
Study of body parts and their functions. In this combined field of study, anatomy refers to studying the body structure of organisms, whereas physiology refers to their function.
Chapter 8, Problem 8.5QP
Interpretation Introduction
Interpretation:
The elements, As, Xe, Fe, Li, B,Cl, Ba, P, I, Si has to be identified as metals, nonmetals, or metalloids.
Concept Introduction:
According to physical and chemical properties, the elements can be further divided into metals, non-metals and metalloids.
In a group, the metallic character of an element increases from top to bottom whereas in a period, it decreases from left to right.
Metals are elements that usually contain 1-3 outer shell electrons. Metals look shining and lustrous and are malleable and ductile. They are also good conductors of heat and electricity. They have low ionization energy and tend to lose electrons forming cations. They are most likely to form ionic compounds.
Nonmetals are elements that usually contain 4-8 outer shell electrons. They cannot conduct heat and electricity and are brittle. Also they have high electron affinities and tend to gain electrons forming anions. They are most likely to form molecular compounds.
Metalloids are elements having intermediate properties of metals and nonmetals. Comparing to metals, metalloids are poor conductors but under certain conditions they can act as electrical conductors. They look shining and lustrous like metals yet they are brittle like nonmetals.
The classification elements in the periodic table as metals, nonmetals, or metalloids can be given as
In a plot of IE1 for the Period 3 elements , why do the values for elements in Groups 3A(13) and 6A(16) drop slightly below the generally increasing trend?
Which of the ions Mg2+, Sr2+, Ca2+, Be2+, Ba2+, or Ra2+ is the smallest?
Which of the elements of the third period should have the highest 2nd ionization energy?
S, P, Si, Al, Mg, Na
Which of the halogen elements has the highest density in its standard state?
Br, Cl, F, At
Which of the following does have the highest electron affinity?
Z of P = 15, Cs = 55, Sn = 50, Ba = 56